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05-26-2009, 12:50 PM
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CC Member
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Join Date: May 2009
Cobra Make, Engine:
Posts: 5
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Not Ranked
600hp!!!
sup guys im new hea and i just been wondering around tryin to get ideas to how to get at least 600hp from my 351w, i was thinkin stroker 408 with afr 205or 225 heads but havin trouble deciding cam and intake choice any help!!
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05-26-2009, 01:00 PM
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Banned
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Join Date: Oct 2003
Location: Yorba Linda,
CA
Cobra Make, Engine: SPF w/392CI stroker
Posts: 3,293
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Not Ranked
Unless you are planning to run a blower/turbo or adding a 150-200 hit of NOS, you are not going to see a "livable" (i.e. streetable) 600HP 408. JMHO.
-Dean
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05-26-2009, 01:06 PM
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CC Member
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Join Date: Feb 2005
Location: Perrysburg,
OH
Cobra Make, Engine: SPF #298 427 FI
Posts: 497
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Not Ranked
A good place to star would be going out to 427 cubes. I know that can be done.
Last edited by mpanten; 05-26-2009 at 01:09 PM..
Reason: added content
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05-26-2009, 01:08 PM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
Keith Craft advertises a 427 Windsor that produces 580 HP for $11,495. I'm sure this maybe slightly conservative, in order to match this number on a regular basis, but it can be tweaked upwards too.
There are other engine builders out there, so I'm sure this could be duplicated by others.
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05-26-2009, 01:26 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
Find an outlet for a used Nextel Cup engine. It'll have all the good parts and be "Way North" of 600HP even after you detune it. 358 CU IN
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
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05-26-2009, 01:37 PM
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CC Member
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Join Date: Jan 2004
Location: Wayne,
NJ
Cobra Make, Engine: Contemporary 482 all aluminum Tunnelport Self built and owned since 1980 frame#0000017 and owner of frame CCX 33961 looking for an FIA body to go with it
Posts: 428
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Not Ranked
600hp can be achieved with CHI 225 heads and manifold using a cam something like this 242/248@ 0.50 duration 630 lift 106 lca. These results can be seen on the engine masters challege for the last 3 or 4 years. These are Cleveland style heads though not windsor heads. Makes a big difference.Check out these engines from MME and Kaase
http://popularhotrodding.automotive....ge/index3.html
http://popularhotrodding.automotive....ge/index1.html
__________________
Cobrarich
Last edited by cobrarkc; 05-26-2009 at 01:55 PM..
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05-26-2009, 01:49 PM
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CC Member
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Join Date: Nov 2003
Location: Houston,
TX
Cobra Make, Engine: Superformance #1374 with 392 RDI Stroker
Posts: 502
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Not Ranked
OR, you could just buy one for lots of $$$$. RDI does a 427 stroker (all aluminum 635 HP with a solid roller cam.
Mark
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05-26-2009, 01:53 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
How much money do you have to spend?
I did 600 easy hp with 445ci and a small hydraulic roller camshaft.
You can also do a 408, use the 225cc AFR heads, a Super Victor intake, and a solid roller camshaft.
Decide how much money you need to spend, and I can help you pick a cam.
Keep in mind though, a 600hp 408 won't be too timid...
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05-26-2009, 02:40 PM
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CC Member
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Join Date: Apr 1999
Location: cleveland,
OH
Cobra Make, Engine: CSX4000, 427
Posts: 1,999
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Not Ranked
600 hp will be easier to get on some dyno's as compared to others.
__________________
"After jumping into an early lead, Miles pitted for no reason. He let the entire field go by before re-entering the race. The crowd was jumping up and down as he stunned the Chevrolet drivers by easily passing the entire field to finish second behind MacDonald's other team Cobra. The Corvette people were completely demoralized."
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05-26-2009, 02:49 PM
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CC Member
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Join Date: Feb 2001
Location: St. Louis, Missouri,
MO
Cobra Make, Engine: SPO 2715
Posts: 1,648
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Not Ranked
On pump gas right?
Whew!, it will take more than a set of heads on a 351W.
I think Red is right, get a power adder.
Can I ask, why is 600 hp important?
Besides, everyone knows that 1,000 hp is the new 500 hp 
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05-26-2009, 04:58 PM
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CC Member
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Join Date: Oct 2001
Location: Lehi,
UT
Cobra Make, Engine: Polished KMP #488 / 427SC, 427 SO/482 by KC
Posts: 431
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Not Ranked
Go with a big block instead, the low end torque will be much more fun than the high rev. horse power.
JMHO,
Todd
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05-26-2009, 05:48 PM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
Coach bought a 408 from Keith for less than $10K and got something like 525 fwhp & 535 ftq. Coach installed the motor in his Daytona Coupe. Very streetable.
You don't need 600 hp in every car.
Dwight
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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05-26-2009, 06:34 PM
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CC Member
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Join Date: Nov 2006
Cobra Make, Engine: ERA, FE BBF
Posts: 389
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Not Ranked
Quote:
Originally Posted by 84nastythng
sup guys im new hea and i just been wondering around tryin to get ideas to how to get at least 600hp from my 351w, i was thinkin stroker 408 with afr 205or 225 heads but havin trouble deciding cam and intake choice any help!!
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A 427 bore/stroker combo would be a good place to begin. I would agree that with other on this thread that would say that breaking the 600 hp barrier with a streetable combination would be almost impossible without some sort of power adder. Suggest you take a look at a centrifical supercharger. This combination on a 351-w based stroker should get you into the 625 hp (600+ ft-lbs torque) range on 93 octane pump gas in a streetable combination that should last for awhile.
- Fred |
05-26-2009, 06:44 PM
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CC Member
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Join Date: May 2009
Cobra Make, Engine:
Posts: 5
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Not Ranked
well to all who replied and really mr franklin i did have the 460 in my car(84 mustang) and coundlnt find the chassis setup i needed to keep it on the ground and goin str8 and breakin bellhousins.
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05-26-2009, 06:47 PM
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CC Member
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Join Date: May 2009
Cobra Make, Engine:
Posts: 5
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Not Ranked
well 600hp is not that important thats just the number i was wantin out of the little 408 wit some nitrous on it is not gonna be street legal thinkin bout grudge racing
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05-26-2009, 07:03 PM
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CC Member
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Join Date: May 2009
Cobra Make, Engine:
Posts: 5
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Not Ranked
to all i was just readin an article from airflowresearch if they can build an 560 hp 408 with 205 heads, i can get at least 580+ with 225 heads take a look for yourself at
http://airflowresearch.com/articles/article046/A-P1.htm |
05-26-2009, 11:52 PM
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CC Member
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Join Date: Jan 2008
Location: Nashville,
TN
Cobra Make, Engine: Backdraft, SBF 351w (463 CI)
Posts: 272
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Not Ranked
Yes it can be done, however; it is not that easy to do if it is a street engine on pump gas with a hyd. cam. Anybody can advertise 600 hp on a dyno, but is it an honest 600hp? Remember horsepower is a marketing tool (It sales engines).
You will need a dart block, big heads that will flow at least 300 and an intake that will flow just as good (225cc and super victor intake) and a big cam and a lot of stroke
My engine specs
461Ci SBF
AFR 225 heads (8mm valve stems with titanium retainers)
High rev lifters
LSM custom ground Hyd. roller cam 262 268 at 50, 680 680 with a 1.72 ratio
Super Victor
Ross custom pistons with total seal rings (gapless)
Eagle rods and crank
Quick Fuel 850
Max dyno pull 601 HP 596TQ (small headers)
Average dyno pull 596HP
Give Adam or Mark a call http://www.precisionraceengines.com/ they did a great job for me. |
05-27-2009, 12:06 AM
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CC Member
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Join Date: Mar 2005
Location: Orange County,
CA
Cobra Make, Engine: SPF Brock Coupe #88, Keith Craft 427w
Posts: 707
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Not Ranked
Quote:
Originally Posted by RodKnock
Keith Craft advertises a 427 Windsor that produces 580 HP for $11,495. I'm sure this maybe slightly conservative, in order to match this number on a regular basis, but it can be tweaked upwards too.
There are other engine builders out there, so I'm sure this could be duplicated by others.
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I have this engine in my coupe and it dyno'd at 579.5 HP, but 609 on torque. Torque is what really counts!
Doug, c088
__________________
Now back to my midlife crisis...
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05-27-2009, 01:56 AM
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CC Member
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Join Date: May 2002
Location: Ashburton, New Zealand,
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Cobra Make, Engine: UK Ram SC. KC-Yates 373, Jerico 5 speed.
Posts: 1,240
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Not Ranked
600hp
Quote:
Originally Posted by Rick Parker
Find an outlet for a used Nextel Cup engine. It'll have all the good parts and be "Way North" of 600HP even after you detune it. 358 CU IN
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Thats the one Rick, Keith Craft built me an alloy engine based on 351 windsor 9.2 deck, based on Cup parts and new parts, this engine produces "Way North" of 600hp with 373 cubes, 10.3 comp ratio, so can run pump gas. Usage is mainly club racing and some road use to enjoy the capital outlay, but this aint a town car with Jerico etc! I strongly recommend KC everything he promised I received and more, plus I am hard to please, we dynoed the engine here as well to test a different inlet manifold and were pleased with results.
__________________
A J. Newton
The 1960's rocked!
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05-29-2009, 08:10 PM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: Backdraft Racing #699, Keith Craft 427 SB w/ 600+ Flywheel HP, Mass-Flo EFI
Posts: 18
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Not Ranked
My WIndsor based, 600 HP motor built by Keith Craft, is cery streetable. A buddy's, only displacing 410 ci, is at 590+, and is just as streetable. Both use AFR 205's that Keith has worked his magic on. I'd say it is definately doable without a power adder!
Talk to Keith!
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